A few iconic structures are all that remain of America’s first outdoor shopping mall.

Resting place of Hollywood's immortals is also site of summer film screenings.

An apparition of Virgin Mary in Herzegovina.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

A hugely vast Irish landscape of barren rock that stretches for miles.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

The ancient tomb acts as a calendar that keeps perfect time.

This cemetery overlooking the Benbulben rock formation is the final resting place of one of Ireland's most beloved poets.

The largest greenhouse in the world is home to over one million types of plants.

A 150-year-old steam locomotive crosses the southern half of the island daily.

World's largest working waterwheel has been around for over 150 years.

The Guinness Record holder for largest hedge in the world is a verdant Scottish bulwark.

Macbeth's infamous "Great Birnam Wood."

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

Legend says the water within these mysterious sacred springs stays cold even when boiled.

These tiny effigies are believed to represent victims of Edinburgh’s notorious Anatomy Murders.

This mine was once used to defend the coast from attack during World War II.

This stone harbor was key to Carnlough's limestone industry.

An abandoned shipping control tower looks like a satellite perched at the end of a pier.

A restored World War II Churchill Mark VII Tank now stands guard in Carrickfergus.

This castle once belonged to one of the most prominent families of medieval Carrickfergus.

This Bronze Age tomb makes the most unusual front garden fixture.

This giant sculpture is both loved and disliked by the local community.

This picturesque lighthouse at the edge of the Irish Sea looks like a giant stone pencil.